Going straight ahead!

.gitignore

@@ -1 +1,5 @@
 .direnv
+result
+*.duckdb
+notebooks
+static/data

duckdb/metro.sql

@@ -0,0 +1,50 @@
+INSTALL spatial;
+LOAD spatial;
+
+CREATE OR REPLACE VIEW osm_quebec AS (
+    SELECT
+        *,
+        'montreal' AS city
+    FROM
+        ST_READOSM (
+            '/nix/store/j56yncmjh7qgwa5k631vl70mdny7c5y0-data-dir/canada/quebec/montreal_quebec.osm.pbf'
+        )
+);
+
+CREATE OR REPLACE VIEW roads AS (
+    WITH
+        interresting_ways AS (SELECT * FROM osm_quebec
+                              WHERE (
+                                    tags['highway'][1] = 'residential'
+                                    OR tags['highway'][1] = 'primary'
+                                    OR tags['highway'][1] = 'secondary'
+                                    OR tags['highway'][1] = 'tertiary'
+                                    )
+                                    AND city = 'montreal'),
+        relations AS (SELECT id,
+                             tags,
+                             UNNEST(refs) AS refs,
+                             UNNEST(RANGE(LEN(refs))) as index
+                FROM interresting_ways),
+        road_points AS (SELECT osm_quebec.id AS id,
+                               osm_quebec.lon AS lon,
+                               osm_quebec.lat AS lat,
+                               relations.tags AS tags,
+                               relations.index AS relation_index,
+                               relations.id AS relation_id
+                        FROM relations
+                        JOIN osm_quebec
+                            ON osm_quebec.id = relations.refs
+                        WHERE
+                            osm_quebec.kind = 'node'
+                        ORDER BY relation_id, relation_index)
+        SELECT
+            relation_id,
+            LIST([road_points.lat, road_points.lon]) AS points,
+            ANY_VALUE(tags) AS tags
+        FROM road_points
+        GROUP BY relation_id
+);
+
+COPY roads TO 'static/data/montreal.csv';
+COPY roads TO 'static/data/montreal.json';

flake.lock

@@ -5,11 +5,11 @@
         "systems": "systems"
       },
       "locked": {
-        "lastModified": 1710146030,
+        "lastModified": 1731533236,
-        "narHash": "sha256-SZ5L6eA7HJ/nmkzGG7/ISclqe6oZdOZTNoesiInkXPQ=",
+        "narHash": "sha256-l0KFg5HjrsfsO/JpG+r7fRrqm12kzFHyUHqHCVpMMbI=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "b1d9ab70662946ef0850d488da1c9019f3a9752a",
+        "rev": "11707dc2f618dd54ca8739b309ec4fc024de578b",
         "type": "github"
       },
       "original": {
@@ -20,11 +20,11 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1724819573,
+        "lastModified": 1735291276,
-        "narHash": "sha256-GnR7/ibgIH1vhoy8cYdmXE6iyZqKqFxQSVkFgosBh6w=",
+        "narHash": "sha256-NYVcA06+blsLG6wpAbSPTCyLvxD/92Hy4vlY9WxFI1M=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "71e91c409d1e654808b2621f28a327acfdad8dc2",
+        "rev": "634fd46801442d760e09493a794c4f15db2d0cbb",
         "type": "github"
       },
       "original": {
@@ -34,22 +34,39 @@
         "type": "github"
       }
     },
+    "quebec-cities-poly": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1735484400,
+        "narHash": "sha256-poCHLXsdgX20cJiQVEamHkY6CpAJhbhMLJgtlFfQnKI=",
+        "owner": "didiercrunch",
+        "repo": "cities",
+        "rev": "c7b7612a5e8ba18831329238047a125ea5358db6",
+        "type": "github"
+      },
+      "original": {
+        "owner": "didiercrunch",
+        "repo": "cities",
+        "type": "github"
+      }
+    },
     "quebec-osm-data": {
       "flake": false,
       "locked": {
-        "narHash": "sha256-wZnwOz49muoA1lXmXQ6LdHhVyt8vhG9Ex+6oWhts2FI=",
+        "narHash": "sha256-Mm7tzput0a4BiUeafCtVpuzPKnT13NfU6zU7o/bJZ3k=",
         "type": "file",
-        "url": "https://download.geofabrik.de/north-america/canada/quebec-240828.osm.pbf"
+        "url": "https://static.home.all-dressed-programming.com/download.geofabrik.de/north-america/canada/quebec-241223.osm.pbf"
       },
       "original": {
         "type": "file",
-        "url": "https://download.geofabrik.de/north-america/canada/quebec-240828.osm.pbf"
+        "url": "https://static.home.all-dressed-programming.com/download.geofabrik.de/north-america/canada/quebec-241223.osm.pbf"
       }
     },
     "root": {
       "inputs": {
         "flake-utils": "flake-utils",
         "nixpkgs": "nixpkgs",
+        "quebec-cities-poly": "quebec-cities-poly",
         "quebec-osm-data": "quebec-osm-data"
       }
     },

flake.nix

@@ -4,21 +4,104 @@
   inputs = {
     nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";
     flake-utils.url = "github:numtide/flake-utils";
-    quebec-osm-data.url =
+    quebec-osm-data = {
-      "https://download.geofabrik.de/north-america/canada/quebec-240828.osm.pbf";
+      url =
-    quebec-osm-data.flake = false;
+        "https://static.home.all-dressed-programming.com/download.geofabrik.de/north-america/canada/quebec-241223.osm.pbf";
+      flake = false;
+    };
+    quebec-cities-poly = {
+      url = "github:didiercrunch/cities";
+      flake = false;
+    };
   };
-
+  outputs = { self, nixpkgs, flake-utils, quebec-osm-data, quebec-cities-poly }:
-  outputs = { self, nixpkgs, flake-utils, quebec-osm-data }:
     flake-utils.lib.eachDefaultSystem (system:
       let
         pkgs = nixpkgs.legacyPackages.${system};
-        default = pkgs.hello;
+
+        poly2geojson = pkgs.rustPlatform.buildRustPackage rec {
+          pname = "poly2geojson";
+          version = "0.1.3";
+
+          src = pkgs.fetchFromGitHub {
+            owner = "frafra";
+            repo = pname;
+            rev = "2fbf2383765fe043d43d53b91ddbfe50c0129bb1";
+            hash = "sha256-BMRl6fRqQlibuGxg5hBHz7r1cvionNYEZe9YcZuL0oU=";
+          };
+          cargoHash = "sha256-pCegHF6SsCIsCQ/b+N34xTMjw2PjPB0pi30Y9sWIcV4=";
+        };
+
+        osmosis = pkgs.stdenv.mkDerivation {
+          name = "osmosis";
+          src = pkgs.fetchzip {
+            url =
+              "https://github.com/openstreetmap/osmosis/releases/download/0.49.2/osmosis-0.49.2.zip";
+            hash = "sha256-hmD/pnEEJsl2NkODon4XZcZ3ZQ7+fx/JvWTR4xrRoug=";
+          };
+          buildInputs = [ ];
+          buildPhase = "";
+          installPhase = ''
+            cp -r . $out
+          '';
+        };
+
+        data-dir = pkgs.stdenv.mkDerivation {
+          name = "data-dir";
+          src = ./scripts;
+          buildInputs = [ poly2geojson ];
+          buildPhase = ''
+            mkdir -p cities/canada/quebec
+            ${pkgs.babashka}/bin/bb  to-geojson.clj ${quebec-cities-poly}/canada/québec/* > cities.json
+          '';
+          installPhase = ''
+            mkdir -p $out/data
+            cp ${quebec-osm-data} $out/data/quebec.osm.pbf
+            cp cities.json $out/data
+          '';
+        };
+
+        dati = pkgs.stdenv.mkDerivation {
+          name = "data-dir";
+          src = ./scripts;
+          buildInputs = [ poly2geojson pkgs.jdk23 osmosis ];
+          buildPhase = ''
+            mkdir -p cities/canada/quebec
+            cp ${quebec-cities-poly}/canada/quebec/* cities/canada/quebec
+            chmod u+w cities/canada/quebec
+            ${pkgs.babashka}/bin/bb  to-geojson.clj --osm-file ${quebec-osm-data} --paths cities/canada/quebec/*.poly
+          '';
+          installPhase = ''
+            cp -r cities $out
+          '';
+        };
+
+        python-virtual-env = pkgs.python312.withPackages (ps: [
+          ps.matplotlib
+          ps.jupyter
+          ps.duckdb
+          ps.pandas
+          ps.unidecode
+          ps.geopy
+        ]);
       in {
-        packages = { default = default; };
+        packages = {
+          default = data-dir;
+          dati = dati;
+          poly2geojson = poly2geojson;
+          osmosis = osmosis;
+        };
         devShell = pkgs.mkShell {
           name = "spacial-data-experiments";
-          buildInputs = with pkgs; [ duckdb ];
+          buildInputs = with pkgs; [
+            duckdb
+            http-server
+            sqlfluff
+            poly2geojson
+            gdal
+            osmosis
+            python-virtual-env
+          ];
         };
       });
 }

scripts/to-geojson.clj

@@ -0,0 +1,41 @@
+(require '[babashka.process :refer [shell process exec]]
+         '[clojure.string :as strings]
+         '[babashka.cli :as cli])
+
+
+(defn extract-data [file]
+    (let [data (slurp file)
+          geojson (shell {:out :string :continue true :in data} "poly2geojson")
+          city-name (subs file
+                          (inc (strings/last-index-of file "/"))
+                          (strings/last-index-of file "_"))]
+        {:originalFile file
+         :geojson (some-> geojson
+                      :out
+                      (json/parse-string true)
+                      :geometry
+                      json/generate-string)
+         :province "québec"
+         :cityName city-name}))
+
+;;  ${osmosis}/bin/osmosis --read-pbf-fast file="${quebec-osm-data}" \
+                       ;; --bounding-polygon file="cities/canada/quebec/westmount_quebec.poly" \
+                       ;; --write-pbf file="cities/canada/quebec/westmount_quebec.osm.pbf"
+
+(defn extract-osm-pbf [osm-file file]
+    (let [output-file (strings/replace file ".poly" ".osm.pbf")]
+        (println "Processing " file " file to " output-file)
+        (shell {:continue true}
+            "osmosis"
+            "--read-pbf-fast" (str "file=" osm-file)
+            "--bounding-polygon"
+            (str"file=" file)
+            "--write-pbf"
+            (str "file=" output-file))))
+
+
+(def opts (cli/parse-opts *command-line-args* {:coerce {:paths []}}))
+
+(doall (map
+    #(extract-osm-pbf (:osm-file opts) %)
+    (:paths opts)))

static/index-d3.js

@@ -0,0 +1,51 @@
+import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";
+
+function convertCsvRow(row) {
+  return {
+    relation_id: +row.relation_id,
+    points: JSON.parse(row.points),
+  };
+}
+
+const roads = await d3.csv("./data/pincourt.csv", convertCsvRow);
+
+const projection = d3
+  .geoConicConformal()
+  .scale(100000)
+  .center([-73.983028645966, 45.37425995800737]);
+
+function drawRoad(context, road) {
+  if (!road || !road.points || road.points.length < 1) {
+    return context;
+  }
+  context.moveTo(...projection([road.points[0][0], road.points[0][1]]));
+  for (const datum of road.points) {
+    context.lineTo(...projection([datum[0], datum[1]]));
+  }
+  return context;
+}
+
+const svg = d3
+  .create("svg")
+  .attr("width", 975)
+  .attr("height", 610)
+  .attr("viewBox", [0, 0, 975, 610])
+  .attr("style", "max-width: 100%; height: auto;");
+
+svg
+  .append("g")
+  .attr("transform", "translate(610,20)")
+  .append("text")
+  .text("Some title");
+
+svg
+  .selectAll("path")
+  .data(roads)
+  .join("path")
+  .attr("fill", "none")
+  .attr("stroke", "black")
+  .attr("stroke-linejoin", "round")
+  .attr("stroke-with", 2)
+  .attr("d", (road) => drawRoad(d3.path(), road).toString());
+
+container.append(svg.node());

static/index-leaflet.js

@@ -0,0 +1,35 @@
+import leaflet from "https://esm.sh/leaflet@1.9.4";
+import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";
+
+function convertCsvRow(row) {
+  return {
+    relation_id: +row.relation_id,
+    points: JSON.parse(row.points),
+  };
+}
+
+function getCenter(data) {
+  if (!data) {
+    return [51.505, -0.09]; // london
+  }
+  return data[0].points[0];
+}
+
+function addRoad(road, map) {
+  leaflet.polyline(road.points).addTo(map);
+}
+
+function addRoads(roads, map) {
+  for (const road of roads) {
+    addRoad(road, map);
+  }
+}
+
+const roads = await d3.csv("./data/montreal.csv", convertCsvRow);
+
+const map = leaflet.map("leaflet-map").setView(getCenter(roads), 13);
+
+leaflet
+  .tileLayer("https://tile.openstreetmap.org/{z}/{x}/{y}.png", { maxZoom: 19 })
+  .addTo(map);
+addRoads(roads, map);

static/index.html

@@ -1,13 +1,23 @@
-
+<!doctype html>
-<!DOCTYPE html>
+<html style="background-color: black">
-<html>
     <head>
-        <meta charset="utf-8">
+        <meta charset="utf-8" />
         <title>spacial-data-experiments</title>
+
+        <link
+            rel="stylesheet"
+            href="https://unpkg.com/leaflet@1.9.4/dist/leaflet.css"
+            integrity="sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY="
+            crossorigin=""
+        />
     </head>
 
-    <body>
+    <body style="width: 100%; text-align: center">
-        <div id="container"></div>
+        <div id="container" style="background-color: white"></div>
-        <script type="module" src='index.js'></script>
+
+        <div id="leaflet-map" style="height: 1200px; width: 1200px"></div>
+
+        <!-- <script type="module" src="index-d3.js"></script> -->
+        <script type="module" src="index-leaflet.js"></script>
     </body>
 </html>

static/index.js

@@ -1,43 +0,0 @@
-import * as d3 from "https://cdn.jsdelivr.net/npm/d3@7/+esm";
-
-import * as topojson from "https://cdn.jsdelivr.net/npm/topojson@3/+esm";
-
-const roadUrl = './road.json';
-const road = await (await fetch(roadUrl)).json()
-
-const projection = d3.geoConicConformal()
-                      .scale(12000)
-                      .center([-72.949, 46.879])
-
-
-
-function drawRoads(context, data) {
-  if(!data || data.length < 1){
-    return context;
-  }
-  context.moveTo(...projection([data[0].lon, data[0].lat]));
-  for(const datum of data){
-    context.lineTo(...projection([datum.lon, datum.lat]));
-  }
-  return context;
-}
-
-const svg = d3.create("svg")
-    .attr("width", 975)
-    .attr("height", 610)
-    .attr("viewBox", [0, 0, 975, 610])
-    .attr("style", "max-width: 100%; height: auto;");
-
-svg.append("g")
-    .attr("transform", "translate(610,20)")
-    .append('text').text("fuck me");
-
-svg.append("path")
-    .data([road])
-    .attr("fill", "none")
-    .attr("stroke", "black")
-    .attr("stroke-linejoin", "round")
-    .attr("stroke-with", 2)
-    .attr("d", d => drawRoads(d3.path(), d).toString());
-
-container.append(svg.node());

static/road.json

@@ -1,62 +0,0 @@
-[{"kind":"node","id":16874054,"tags":null,"refs":null,"lat":45.5292308,"lon":-74.55641920000001,"ref_roles":null,"ref_types":null,"refs_1":16874054},
-{"kind":"node","id":1452900835,"tags":null,"refs":null,"lat":45.5311146,"lon":-74.5546107,"ref_roles":null,"ref_types":null,"refs_1":1452900835},
-{"kind":"node","id":16874055,"tags":null,"refs":null,"lat":45.532989,"lon":-74.55260270000001,"ref_roles":null,"ref_types":null,"refs_1":16874055},
-{"kind":"node","id":1452900864,"tags":null,"refs":null,"lat":45.542531000000004,"lon":-74.5416177,"ref_roles":null,"ref_types":null,"refs_1":1452900864},
-{"kind":"node","id":4512670916,"tags":null,"refs":null,"lat":45.5433042,"lon":-74.54055190000001,"ref_roles":null,"ref_types":null,"refs_1":4512670916},
-{"kind":"node","id":16874058,"tags":null,"refs":null,"lat":45.544044400000004,"lon":-74.5394361,"ref_roles":null,"ref_types":null,"refs_1":16874058},
-{"kind":"node","id":4512670917,"tags":null,"refs":null,"lat":45.5446192,"lon":-74.53849190000001,"ref_roles":null,"ref_types":null,"refs_1":4512670917},
-{"kind":"node","id":1452900866,"tags":null,"refs":null,"lat":45.545194,"lon":-74.5374298,"ref_roles":null,"ref_types":null,"refs_1":1452900866},
-{"kind":"node","id":16874059,"tags":null,"refs":null,"lat":45.5461273,"lon":-74.53556760000001,"ref_roles":null,"ref_types":null,"refs_1":16874059},
-{"kind":"node","id":4512670918,"tags":null,"refs":null,"lat":45.546693000000005,"lon":-74.5342433,"ref_roles":null,"ref_types":null,"refs_1":4512670918},
-{"kind":"node","id":1452900868,"tags":null,"refs":null,"lat":45.547448100000004,"lon":-74.53218340000001,"ref_roles":null,"ref_types":null,"refs_1":1452900868},
-{"kind":"node","id":17053331,"tags":null,"refs":null,"lat":45.548865600000006,"lon":-74.5284827,"ref_roles":null,"ref_types":null,"refs_1":17053331},
-{"kind":"node","id":1452900882,"tags":null,"refs":null,"lat":45.5497377,"lon":-74.52613190000001,"ref_roles":null,"ref_types":null,"refs_1":1452900882},
-{"kind":"node","id":17053333,"tags":null,"refs":null,"lat":45.5506867,"lon":-74.5239093,"ref_roles":null,"ref_types":null,"refs_1":17053333},
-{"kind":"node","id":3506421397,"tags":null,"refs":null,"lat":45.551139500000005,"lon":-74.5229566,"ref_roles":null,"ref_types":null,"refs_1":3506421397},
-{"kind":"node","id":1452900886,"tags":null,"refs":null,"lat":45.551902600000005,"lon":-74.5216305,"ref_roles":null,"ref_types":null,"refs_1":1452900886},
-{"kind":"node","id":3506421404,"tags":null,"refs":null,"lat":45.5525632,"lon":-74.5206493,"ref_roles":null,"ref_types":null,"refs_1":3506421404},
-{"kind":"node","id":3506421403,"tags":null,"refs":null,"lat":45.5540165,"lon":-74.5188466,"ref_roles":null,"ref_types":null,"refs_1":3506421403},
-{"kind":"node","id":1452900890,"tags":null,"refs":null,"lat":45.5549678,"lon":-74.5178784,"ref_roles":null,"ref_types":null,"refs_1":1452900890},
-{"kind":"node","id":5748462429,"tags":null,"refs":null,"lat":45.5605861,"lon":-74.51205780000001,"ref_roles":null,"ref_types":null,"refs_1":5748462429},
-{"kind":"node","id":1452900894,"tags":null,"refs":null,"lat":45.562221,"lon":-74.5103639,"ref_roles":null,"ref_types":null,"refs_1":1452900894},
-{"kind":"node","id":3506421401,"tags":null,"refs":null,"lat":45.5630547,"lon":-74.50927030000001,"ref_roles":null,"ref_types":null,"refs_1":3506421401},
-{"kind":"node","id":1699110086,"tags":null,"refs":null,"lat":45.563304200000005,"lon":-74.5088868,"ref_roles":null,"ref_types":null,"refs_1":1699110086},
-{"kind":"node","id":3506421396,"tags":null,"refs":null,"lat":45.5636285,"lon":-74.50834230000001,"ref_roles":null,"ref_types":null,"refs_1":3506421396},
-{"kind":"node","id":1699110096,"tags":null,"refs":null,"lat":45.5640571,"lon":-74.5074692,"ref_roles":null,"ref_types":null,"refs_1":1699110096},
-{"kind":"node","id":3506421424,"tags":null,"refs":null,"lat":45.5642687,"lon":-74.5069479,"ref_roles":null,"ref_types":null,"refs_1":3506421424},
-{"kind":"node","id":1699110099,"tags":null,"refs":null,"lat":45.564606100000006,"lon":-74.50595750000001,"ref_roles":null,"ref_types":null,"refs_1":1699110099},
-{"kind":"node","id":294347577,"tags":null,"refs":null,"lat":45.564881400000004,"lon":-74.50497130000001,"ref_roles":null,"ref_types":null,"refs_1":294347577},
-{"kind":"node","id":17053336,"tags":null,"refs":null,"lat":45.565148300000004,"lon":-74.5033525,"ref_roles":null,"ref_types":null,"refs_1":17053336},
-{"kind":"node","id":3506421438,"tags":null,"refs":null,"lat":45.565200700000005,"lon":-74.50279450000001,"ref_roles":null,"ref_types":null,"refs_1":3506421438},
-{"kind":"node","id":17053337,"tags":null,"refs":null,"lat":45.5652404,"lon":-74.50223820000001,"ref_roles":null,"ref_types":null,"refs_1":17053337},
-{"kind":"node","id":3506421433,"tags":null,"refs":null,"lat":45.5652534,"lon":-74.5017481,"ref_roles":null,"ref_types":null,"refs_1":3506421433},
-{"kind":"node","id":3506421449,"tags":null,"refs":null,"lat":45.5652552,"lon":-74.5013563,"ref_roles":null,"ref_types":null,"refs_1":3506421449},
-{"kind":"node","id":1452900897,"tags":null,"refs":null,"lat":45.5652357,"lon":-74.5007033,"ref_roles":null,"ref_types":null,"refs_1":1452900897},
-{"kind":"node","id":294346765,"tags":null,"refs":null,"lat":45.565069300000005,"lon":-74.4991076,"ref_roles":null,"ref_types":null,"refs_1":294346765},
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